157469 has 4 divisors (see below), whose sum is σ = 169596. Its totient is φ = 145344.

The previous prime is 157457. The next prime is 157477. The reversal of 157469 is 964751.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 964751 = 31 ⋅31121.

It can be written as a sum of positive squares in 2 ways, for example, as 34969 + 122500 = 187^2 + 350^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157469 is a prime.

It is a super-2 number, since 2×157469² = 49592971922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6044 + ... + 6069.

It is an arithmetic number, because the mean of its divisors is an integer number (42399).

157469 is a Friedman number, since it can be written as (9*6)^(7-4*1)+5, using all its digits and the basic arithmetic operations.

2¹⁵⁷⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

157469 is a deficient number, since it is larger than the sum of its proper divisors (12127).

157469 is a wasteful number, since it uses less digits than its factorization.

157469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12126.

The product of its digits is 7560, while the sum is 32.

The square root of 157469 is about 396.8236384088. The cubic root of 157469 is about 54.0005715532. Note that the first 3 decimals are identical.

It can be divided in two parts, 157 and 469, that added together give a palindrome (626).

The spelling of 157469 in words is "one hundred fifty-seven thousand, four hundred sixty-nine".