140774137 has 4 divisors (see below), whose sum is σ = 160884736. Its totient is φ = 120663540.

The previous prime is 140774111. The next prime is 140774143. The reversal of 140774137 is 731477041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 731477041 = 347 ⋅2108003.

It is a cyclic number.

It is not a de Polignac number, because 140774137 - 2¹⁵ = 140741369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140774147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10055289 + ... + 10055302.

It is an arithmetic number, because the mean of its divisors is an integer number (40221184).

Almost surely, 2^140774137 is an apocalyptic number.

It is an amenable number.

140774137 is a deficient number, since it is larger than the sum of its proper divisors (20110599).

140774137 is an equidigital number, since it uses as much as digits as its factorization.

140774137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20110598.

The product of its (nonzero) digits is 16464, while the sum is 34.

The square root of 140774137 is about 11864.8277273629. The cubic root of 140774137 is about 520.2047233842.

The spelling of 140774137 in words is "one hundred forty million, seven hundred seventy-four thousand, one hundred thirty-seven".