140137452 has 240 divisors, whose sum is σ = 464833600. Its totient is φ = 36578304.

The previous prime is 140137447. The next prime is 140137469. The reversal of 140137452 is 254731041.

140137452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1444668 + ... + 1444764.

Almost surely, 2^140137452 is an apocalyptic number.

140137452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140137452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232416800).

140137452 is an abundant number, since it is smaller than the sum of its proper divisors (324696148).

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

140137452 is a wasteful number, since it uses less digits than its factorization.

140137452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 140137452 is about 11837.9665483562. The cubic root of 140137452 is about 519.4192876257.

Adding to 140137452 its reverse (254731041), we get a palindrome (394868493).

The spelling of 140137452 in words is "one hundred forty million, one hundred thirty-seven thousand, four hundred fifty-two".