157057445 has 8 divisors (see below), whose sum is σ = 188732544. Its totient is φ = 125470224.

The previous prime is 157057427. The next prime is 157057487. The reversal of 157057445 is 544750751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157057445 - 2⁸ = 157057189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 157057399 and 157057408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17969 + ... + 25238.

It is an arithmetic number, because the mean of its divisors is an integer number (23591568).

Almost surely, 2^157057445 is an apocalyptic number.

It is an amenable number.

157057445 is a deficient number, since it is larger than the sum of its proper divisors (31675099).

157057445 is an equidigital number, since it uses as much as digits as its factorization.

157057445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43939.

The product of its (nonzero) digits is 98000, while the sum is 38.

The square root of 157057445 is about 12532.2561815501. The cubic root of 157057445 is about 539.5348589433.

The spelling of 157057445 in words is "one hundred fifty-seven million, fifty-seven thousand, four hundred forty-five".