154701457 has 4 divisors (see below), whose sum is σ = 160036020. Its totient is φ = 149366896.

The previous prime is 154701419. The next prime is 154701461. The reversal of 154701457 is 754107451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 754107451 = 6359 ⋅118589.

It can be written as a sum of positive squares in 2 ways, for example, as 51394561 + 103306896 = 7169^2 + 10164^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154701457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154701497) 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, 2667238 + ... + 2667295.

It is an arithmetic number, because the mean of its divisors is an integer number (40009005).

Almost surely, 2^154701457 is an apocalyptic number.

It is an amenable number.

154701457 is a deficient number, since it is larger than the sum of its proper divisors (5334563).

154701457 is an equidigital number, since it uses as much as digits as its factorization.

154701457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5334562.

The product of its (nonzero) digits is 19600, while the sum is 34.

The square root of 154701457 is about 12437.9040436884. The cubic root of 154701457 is about 536.8234366190.

The spelling of 154701457 in words is "one hundred fifty-four million, seven hundred one thousand, four hundred fifty-seven".