1238537925 has 48 divisors (see below), whose sum is σ = 2374193280. Its totient is φ = 631825920.

The previous prime is 1238537893. The next prime is 1238537939. The reversal of 1238537925 is 5297358321.

1238537925 is a `hidden beast` number, since 1 + 23 + 8 + 537 + 92 + 5 = 666.

It is not a de Polignac number, because 1238537925 - 2⁵ = 1238537893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24364 + ... + 55413.

It is an arithmetic number, because the mean of its divisors is an integer number (49462360).

Almost surely, 2^1238537925 is an apocalyptic number.

1238537925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1238537925 is a deficient number, since it is larger than the sum of its proper divisors (1135655355).

1238537925 is a wasteful number, since it uses less digits than its factorization.

1238537925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79819 (or 79808 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 1238537925 is about 35192.8675302255. The cubic root of 1238537925 is about 1073.9146572428.

The spelling of 1238537925 in words is "one billion, two hundred thirty-eight million, five hundred thirty-seven thousand, nine hundred twenty-five".