139342925448 has 24 divisors (see below), whose sum is σ = 377387089950. Its totient is φ = 46447641792.

The previous prime is 139342925443. The next prime is 139342925483. The reversal of 139342925448 is 844529243931.

It is a happy number.

139342925448 is a `hidden beast` number, since 1 + 3 + 9 + 3 + 4 + 2 + 92 + 544 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 138370608324 + 972317124 = 371982^2 + 31182^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 139342925394 and 139342925403.

It is not an unprimeable number, because it can be changed into a prime (139342925443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 967659133 + ... + 967659276.

Almost surely, 2^139342925448 is an apocalyptic number.

139342925448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

139342925448 is an abundant number, since it is smaller than the sum of its proper divisors (238044164502).

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

139342925448 is a wasteful number, since it uses less digits than its factorization.

139342925448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935318421 (or 1935318414 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 139342925448 in words is "one hundred thirty-nine billion, three hundred forty-two million, nine hundred twenty-five thousand, four hundred forty-eight".