1381653132 has 12 divisors (see below), whose sum is σ = 3223857336. Its totient is φ = 460551040.

The previous prime is 1381653103. The next prime is 1381653151. The reversal of 1381653132 is 2313561831.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1381653093 and 1381653102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57568869 + ... + 57568892.

It is an arithmetic number, because the mean of its divisors is an integer number (268654778).

Almost surely, 2^1381653132 is an apocalyptic number.

1381653132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1381653132 is an abundant number, since it is smaller than the sum of its proper divisors (1842204204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1381653132 is a wasteful number, since it uses less digits than its factorization.

1381653132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115137768 (or 115137766 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 1381653132 is about 37170.5949912024. The cubic root of 1381653132 is about 1113.7806673665.

The spelling of 1381653132 in words is "one billion, three hundred eighty-one million, six hundred fifty-three thousand, one hundred thirty-two".