1381614770 has 8 divisors (see below), whose sum is σ = 2486906604. Its totient is φ = 552645904.

The previous prime is 1381614737. The next prime is 1381614779. The reversal of 1381614770 is 774161831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1288163881 + 93450889 = 35891^2 + 9667^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1381614779) 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, 69080729 + ... + 69080748.

Almost surely, 2^1381614770 is an apocalyptic number.

1381614770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1381614770 is a deficient number, since it is larger than the sum of its proper divisors (1105291834).

1381614770 is a wasteful number, since it uses less digits than its factorization.

1381614770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138161484.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 1381614770 is about 37170.0789614442. The cubic root of 1381614770 is about 1113.7703591234.

The spelling of 1381614770 in words is "one billion, three hundred eighty-one million, six hundred fourteen thousand, seven hundred seventy".