90140156 has 6 divisors (see below), whose sum is σ = 157745280. Its totient is φ = 45070076.

The previous prime is 90140153. The next prime is 90140159. The reversal of 90140156 is 65104109.

It is an interprime number because it is at equal distance from previous prime (90140153) and next prime (90140159).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90140153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11267516 + ... + 11267523.

It is an arithmetic number, because the mean of its divisors is an integer number (26290880).

Almost surely, 2^90140156 is an apocalyptic number.

It is an amenable number.

90140156 is a deficient number, since it is larger than the sum of its proper divisors (67605124).

90140156 is a wasteful number, since it uses less digits than its factorization.

90140156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22535043 (or 22535041 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 90140156 is about 9494.2169766653. The cubic root of 90140156 is about 448.3729820643.

The spelling of 90140156 in words is "ninety million, one hundred forty thousand, one hundred fifty-six".