149942189345 has 24 divisors (see below), whose sum is σ = 205840280184. Its totient is φ = 104213200896.

The previous prime is 149942189339. The next prime is 149942189351. The reversal of 149942189345 is 543981249941.

149942189345 = 273808² + 273809².

It is an interprime number because it is at equal distance from previous prime (149942189339) and next prime (149942189351).

It can be written as a sum of positive squares in 12 ways, for example, as 2998767121 + 146943422224 = 54761^2 + 383332^2 .

It is a de Polignac number, because none of the positive numbers 2^k-149942189345 is a prime.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3972224 + ... + 4009793.

It is an arithmetic number, because the mean of its divisors is an integer number (8576678341).

Almost surely, 2^149942189345 is an apocalyptic number.

149942189345 is the 273809-th centered square number.

It is an amenable number.

149942189345 is a deficient number, since it is larger than the sum of its proper divisors (55898090839).

149942189345 is a wasteful number, since it uses less digits than its factorization.

149942189345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7982069 (or 7982052 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 59.

The spelling of 149942189345 in words is "one hundred forty-nine billion, nine hundred forty-two million, one hundred eighty-nine thousand, three hundred forty-five".