88149557 has 4 divisors (see below), whose sum is σ = 88843776. Its totient is φ = 87455340.

The previous prime is 88149541. The next prime is 88149559. The reversal of 88149557 is 75594188.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 88149557 - 2⁴ = 88149541 is a prime.

It is a super-3 number, since 3×88149557³ (a number of 25 digits) contains 333 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 (88149559) 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 3 ways as a sum of consecutive naturals, for example, 346919 + ... + 347172.

It is an arithmetic number, because the mean of its divisors is an integer number (22210944).

Almost surely, 2^88149557 is an apocalyptic number.

It is an amenable number.

88149557 is a deficient number, since it is larger than the sum of its proper divisors (694219).

88149557 is a wasteful number, since it uses less digits than its factorization.

88149557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694218.

The product of its digits is 403200, while the sum is 47.

The square root of 88149557 is about 9388.7995505283. The cubic root of 88149557 is about 445.0478541307.

The spelling of 88149557 in words is "eighty-eight million, one hundred forty-nine thousand, five hundred fifty-seven".