157441645 has 4 divisors (see below), whose sum is σ = 188929980. Its totient is φ = 125953312.

The previous prime is 157441639. The next prime is 157441651. The reversal of 157441645 is 546144751.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (157441639) and next prime (157441651).

It can be written as a sum of positive squares in 2 ways, for example, as 46539684 + 110901961 = 6822^2 + 10531^2 .

It is a cyclic number.

It is not a de Polignac number, because 157441645 - 2¹³ = 157433453 is a prime.

It is a super-3 number, since 3×157441645³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15744160 + ... + 15744169.

It is an arithmetic number, because the mean of its divisors is an integer number (47232495).

Almost surely, 2^157441645 is an apocalyptic number.

It is an amenable number.

157441645 is a deficient number, since it is larger than the sum of its proper divisors (31488335).

157441645 is an equidigital number, since it uses as much as digits as its factorization.

157441645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31488334.

The product of its digits is 67200, while the sum is 37.

The square root of 157441645 is about 12547.5752637711. The cubic root of 157441645 is about 539.9744443782.

The spelling of 157441645 in words is "one hundred fifty-seven million, four hundred forty-one thousand, six hundred forty-five".