157001797 has 8 divisors (see below), whose sum is σ = 159268032. Its totient is φ = 154752000.

The previous prime is 157001791. The next prime is 157001813. The reversal of 157001797 is 797100751.

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-157001797 is a prime.

It is a super-2 number, since 2×157001797² = 49299128522458418, 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 (157001791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15813 + ... + 23749.

It is an arithmetic number, because the mean of its divisors is an integer number (19908504).

Almost surely, 2^157001797 is an apocalyptic number.

It is an amenable number.

157001797 is a deficient number, since it is larger than the sum of its proper divisors (2266235).

157001797 is a wasteful number, since it uses less digits than its factorization.

157001797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8219.

The product of its (nonzero) digits is 15435, while the sum is 37.

The square root of 157001797 is about 12530.0357940430. The cubic root of 157001797 is about 539.4711294322.

The spelling of 157001797 in words is "one hundred fifty-seven million, one thousand, seven hundred ninety-seven".