140131425 has 72 divisors (see below), whose sum is σ = 285490656. Its totient is φ = 60264960.

The previous prime is 140131423. The next prime is 140131427. The reversal of 140131425 is 524131041.

It is an interprime number because it is at equal distance from previous prime (140131423) and next prime (140131427).

It is not a de Polignac number, because 140131425 - 2¹ = 140131423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (140131423) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 61354 + ... + 63596.

It is an arithmetic number, because the mean of its divisors is an integer number (3965148).

Almost surely, 2^140131425 is an apocalyptic number.

140131425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140131425 is an abundant number, since it is smaller than the sum of its proper divisors (145359231).

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

140131425 is a wasteful number, since it uses less digits than its factorization.

140131425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2287 (or 2275 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 140131425 is about 11837.7119833184. The cubic root of 140131425 is about 519.4118411630.

Adding to 140131425 its reverse (524131041), we get a palindrome (664262466).

The spelling of 140131425 in words is "one hundred forty million, one hundred thirty-one thousand, four hundred twenty-five".