140973919 has 2 divisors, whose sum is σ = 140973920. Its totient is φ = 140973918.

The previous prime is 140973827. The next prime is 140973961. The reversal of 140973919 is 919379041.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140973919 - 2²¹ = 138876767 is a prime.

It is a super-2 number, since 2×140973919² = 39747291676437122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140979919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70486959 + 70486960.

It is an arithmetic number, because the mean of its divisors is an integer number (70486960).

Almost surely, 2^140973919 is an apocalyptic number.

140973919 is a deficient number, since it is larger than the sum of its proper divisors (1).

140973919 is an equidigital number, since it uses as much as digits as its factorization.

140973919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 140973919 is about 11873.2438280362. The cubic root of 140973919 is about 520.4506928439.

The spelling of 140973919 in words is "one hundred forty million, nine hundred seventy-three thousand, nine hundred nineteen".