134721937 has 4 divisors (see below), whose sum is σ = 153967936. Its totient is φ = 115475940.

The previous prime is 134721931. The next prime is 134721943. The reversal of 134721937 is 739127431.

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.

It is an interprime number because it is at equal distance from previous prime (134721931) and next prime (134721943).

It is a cyclic number.

It is not a de Polignac number, because 134721937 - 2⁷ = 134721809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134721896 and 134721905.

It is not an unprimeable number, because it can be changed into a prime (134721931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9622989 + ... + 9623002.

It is an arithmetic number, because the mean of its divisors is an integer number (38491984).

Almost surely, 2^134721937 is an apocalyptic number.

It is an amenable number.

134721937 is a deficient number, since it is larger than the sum of its proper divisors (19245999).

134721937 is an equidigital number, since it uses as much as digits as its factorization.

134721937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19245998.

The product of its digits is 31752, while the sum is 37.

The square root of 134721937 is about 11606.9779443230. The cubic root of 134721937 is about 512.6403337295.

The spelling of 134721937 in words is "one hundred thirty-four million, seven hundred twenty-one thousand, nine hundred thirty-seven".