149797650 has 24 divisors (see below), whose sum is σ = 371498544. Its totient is φ = 39946000.

The previous prime is 149797621. The next prime is 149797651. The reversal of 149797650 is 56797941.

It is a happy number.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 149797650.

It is not an unprimeable number, because it can be changed into a prime (149797651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 499176 + ... + 499475.

It is an arithmetic number, because the mean of its divisors is an integer number (15479106).

Almost surely, 2^149797650 is an apocalyptic number.

149797650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149797650 is an abundant number, since it is smaller than the sum of its proper divisors (221700894).

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

149797650 is a wasteful number, since it uses less digits than its factorization.

149797650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998666 (or 998661 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 48.

The square root of 149797650 is about 12239.1850218877. The cubic root of 149797650 is about 531.0902560076.

The spelling of 149797650 in words is "one hundred forty-nine million, seven hundred ninety-seven thousand, six hundred fifty".