140473451 has 2 divisors, whose sum is σ = 140473452. Its totient is φ = 140473450.

The previous prime is 140473391. The next prime is 140473457. The reversal of 140473451 is 154374041.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140473451 - 2⁶ = 140473387 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140473457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70236725 + 70236726.

It is an arithmetic number, because the mean of its divisors is an integer number (70236726).

Almost surely, 2^140473451 is an apocalyptic number.

140473451 is a deficient number, since it is larger than the sum of its proper divisors (1).

140473451 is an equidigital number, since it uses as much as digits as its factorization.

140473451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 140473451 is about 11852.1496362474. The cubic root of 140473451 is about 519.8340829144.

The spelling of 140473451 in words is "one hundred forty million, four hundred seventy-three thousand, four hundred fifty-one".