158342457 has 32 divisors (see below), whose sum is σ = 261947392. Its totient is φ = 82845504.

The previous prime is 158342453. The next prime is 158342461. The reversal of 158342457 is 754243851.

It is an interprime number because it is at equal distance from previous prime (158342453) and next prime (158342461).

It is not a de Polignac number, because 158342457 - 2² = 158342453 is a prime.

It is a super-3 number, since 3×158342457³ (a number of 26 digits) contains 333 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (158342453) 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 31 ways as a sum of consecutive naturals, for example, 32388 + ... + 36954.

It is an arithmetic number, because the mean of its divisors is an integer number (8185856).

Almost surely, 2^158342457 is an apocalyptic number.

It is an amenable number.

158342457 is a deficient number, since it is larger than the sum of its proper divisors (103604935).

158342457 is a wasteful number, since it uses less digits than its factorization.

158342457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4717.

The product of its digits is 134400, while the sum is 39.

The square root of 158342457 is about 12583.4199246469. The cubic root of 158342457 is about 541.0023187831.

The spelling of 158342457 in words is "one hundred fifty-eight million, three hundred forty-two thousand, four hundred fifty-seven".