149202102 has 64 divisors (see below), whose sum is σ = 351558144. Its totient is φ = 41333760.

The previous prime is 149202083. The next prime is 149202107. The reversal of 149202102 is 201202941.

It is a super-2 number, since 2×149202102² = 44522534482436808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149202107) 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, 215577 + ... + 216267.

It is an arithmetic number, because the mean of its divisors is an integer number (5493096).

Almost surely, 2^149202102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149202102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175779072).

149202102 is an abundant number, since it is smaller than the sum of its proper divisors (202356042).

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

149202102 is a wasteful number, since it uses less digits than its factorization.

149202102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 149202102 is about 12214.8312309258. The cubic root of 149202102 is about 530.3855056906.

The spelling of 149202102 in words is "one hundred forty-nine million, two hundred two thousand, one hundred two".