90150102 has 72 divisors (see below), whose sum is σ = 232596936. Its totient is φ = 25147584.

The previous prime is 90150101. The next prime is 90150113. The reversal of 90150102 is 20105109.

It is a super-2 number, since 2×90150102² = 16254081781220808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90150101) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 36738 + ... + 39114.

It is an arithmetic number, because the mean of its divisors is an integer number (3230513).

Almost surely, 2^90150102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90150102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116298468).

90150102 is an abundant number, since it is smaller than the sum of its proper divisors (142446834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90150102 is a wasteful number, since it uses less digits than its factorization.

90150102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2442 (or 2432 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 90150102 is about 9494.7407547547. The cubic root of 90150102 is about 448.3894725086.

The spelling of 90150102 in words is "ninety million, one hundred fifty thousand, one hundred two".