149372073 has 16 divisors (see below), whose sum is σ = 225469440. Its totient is φ = 97701552.

The previous prime is 149372057. The next prime is 149372077. The reversal of 149372073 is 370273941.

It is not a de Polignac number, because 149372073 - 2⁴ = 149372057 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (149372077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50761 + ... + 53622.

It is an arithmetic number, because the mean of its divisors is an integer number (14091840).

Almost surely, 2^149372073 is an apocalyptic number.

It is an amenable number.

149372073 is a deficient number, since it is larger than the sum of its proper divisors (76097367).

149372073 is a wasteful number, since it uses less digits than its factorization.

149372073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104445 (or 104439 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 149372073 is about 12221.7868169920. The cubic root of 149372073 is about 530.5868342738.

The spelling of 149372073 in words is "one hundred forty-nine million, three hundred seventy-two thousand, seventy-three".