149917513502 has 8 divisors (see below), whose sum is σ = 224880364800. Its totient is φ = 74957391904.

The previous prime is 149917513481. The next prime is 149917513507. The reversal of 149917513502 is 205315719941.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149917513507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539102 + ... + 768417.

It is an arithmetic number, because the mean of its divisors is an integer number (28110045600).

Almost surely, 2^149917513502 is an apocalyptic number.

149917513502 is a deficient number, since it is larger than the sum of its proper divisors (74962851298).

149917513502 is a wasteful number, since it uses less digits than its factorization.

149917513502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364850.

The product of its (nonzero) digits is 340200, while the sum is 47.

The spelling of 149917513502 in words is "one hundred forty-nine billion, nine hundred seventeen million, five hundred thirteen thousand, five hundred two".