157620801 has 16 divisors (see below), whose sum is σ = 230166720. Its totient is φ = 95352000.

The previous prime is 157620791. The next prime is 157620809. The reversal of 157620801 is 108026751.

It is not a de Polignac number, because 157620801 - 2⁹ = 157620289 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (157620809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31950 + ... + 36551.

It is an arithmetic number, because the mean of its divisors is an integer number (14385420).

Almost surely, 2^157620801 is an apocalyptic number.

It is an amenable number.

157620801 is a deficient number, since it is larger than the sum of its proper divisors (72545919).

157620801 is a wasteful number, since it uses less digits than its factorization.

157620801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68576.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 157620801 is about 12554.7123025580. The cubic root of 157620801 is about 540.1791826496.

The spelling of 157620801 in words is "one hundred fifty-seven million, six hundred twenty thousand, eight hundred one".