157283407 has 8 divisors (see below), whose sum is σ = 164367360. Its totient is φ = 150219960.

The previous prime is 157283393. The next prime is 157283417. The reversal of 157283407 is 704382751.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157283407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157283417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11782 + ... + 21292.

It is an arithmetic number, because the mean of its divisors is an integer number (20545920).

Almost surely, 2^157283407 is an apocalyptic number.

157283407 is a deficient number, since it is larger than the sum of its proper divisors (7083953).

157283407 is an equidigital number, since it uses as much as digits as its factorization.

157283407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10253.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 157283407 is about 12541.2681575668. The cubic root of 157283407 is about 539.7934818430.

The spelling of 157283407 in words is "one hundred fifty-seven million, two hundred eighty-three thousand, four hundred seven".