157048905 has 32 divisors (see below), whose sum is σ = 277933824. Its totient is φ = 75223296.

The previous prime is 157048897. The next prime is 157048951. The reversal of 157048905 is 509840751.

It is not a de Polignac number, because 157048905 - 2³ = 157048897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3669 + ... + 18098.

It is an arithmetic number, because the mean of its divisors is an integer number (8685432).

Almost surely, 2^157048905 is an apocalyptic number.

157048905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157048905 is a deficient number, since it is larger than the sum of its proper divisors (120884919).

157048905 is a wasteful number, since it uses less digits than its factorization.

157048905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21825.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 157048905 is about 12531.9154561464. The cubic root of 157048905 is about 539.5250796951.

The spelling of 157048905 in words is "one hundred fifty-seven million, forty-eight thousand, nine hundred five".