1374401155 has 4 divisors (see below), whose sum is σ = 1649281392. Its totient is φ = 1099520920.

The previous prime is 1374401153. The next prime is 1374401207. The reversal of 1374401155 is 5511044731.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1374401155 - 2¹ = 1374401153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1374401153) 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, 137440111 + ... + 137440120.

It is an arithmetic number, because the mean of its divisors is an integer number (412320348).

Almost surely, 2^1374401155 is an apocalyptic number.

1374401155 is a deficient number, since it is larger than the sum of its proper divisors (274880237).

1374401155 is an equidigital number, since it uses as much as digits as its factorization.

1374401155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274880236.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 1374401155 is about 37072.9167317599. The cubic root of 1374401155 is about 1111.8285891937.

Adding to 1374401155 its reverse (5511044731), we get a palindrome (6885445886).

The spelling of 1374401155 in words is "one billion, three hundred seventy-four million, four hundred one thousand, one hundred fifty-five".