157186138 has 16 divisors (see below), whose sum is σ = 243323424. Its totient is φ = 76098960.

The previous prime is 157186123. The next prime is 157186153. The reversal of 157186138 is 831681751.

It is an interprime number because it is at equal distance from previous prime (157186123) and next prime (157186153).

It is a self number, because there is not a number n which added to its sum of digits gives 157186138.

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, 10581 + ... + 20647.

It is an arithmetic number, because the mean of its divisors is an integer number (15207714).

Almost surely, 2^157186138 is an apocalyptic number.

157186138 is a deficient number, since it is larger than the sum of its proper divisors (86137286).

157186138 is a wasteful number, since it uses less digits than its factorization.

157186138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10317.

The product of its digits is 40320, while the sum is 40.

The square root of 157186138 is about 12537.3896007103. The cubic root of 157186138 is about 539.6821838141.

The spelling of 157186138 in words is "one hundred fifty-seven million, one hundred eighty-six thousand, one hundred thirty-eight".