1461376139 has 8 divisors (see below), whose sum is σ = 1528843680. Its totient is φ = 1394236096.

The previous prime is 1461376129. The next prime is 1461376193. The reversal of 1461376139 is 9316731641.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1461376139 - 2¹² = 1461372043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1461376096 and 1461376105.

It is not an unprimeable number, because it can be changed into a prime (1461376109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72722 + ... + 90615.

It is an arithmetic number, because the mean of its divisors is an integer number (191105460).

Almost surely, 2^1461376139 is an apocalyptic number.

1461376139 is a deficient number, since it is larger than the sum of its proper divisors (67467541).

1461376139 is a wasteful number, since it uses less digits than its factorization.

1461376139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163749.

The product of its digits is 81648, while the sum is 41.

The square root of 1461376139 is about 38227.9497096038. The cubic root of 1461376139 is about 1134.8035106567.

The spelling of 1461376139 in words is "one billion, four hundred sixty-one million, three hundred seventy-six thousand, one hundred thirty-nine".