149262273938 has 6 divisors (see below), whose sum is σ = 223894230471. Its totient is φ = 74630863782.

The previous prime is 149262273931. The next prime is 149262273943. The reversal of 149262273938 is 839372262941.

It can be written as a sum of positive squares in only one way, i.e., 74631136969 + 74631136969 = 273187^2 + 273187^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=273187.

It is a super-2 number, since 2×149262273938² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149262273931) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 409781 + ... + 682967.

Almost surely, 2^149262273938 is an apocalyptic number.

149262273938 is a deficient number, since it is larger than the sum of its proper divisors (74631956533).

149262273938 is an frugal number, since it uses more digits than its factorization.

149262273938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546376 (or 273189 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 56.

The spelling of 149262273938 in words is "one hundred forty-nine billion, two hundred sixty-two million, two hundred seventy-three thousand, nine hundred thirty-eight".