1374145623 has 6 divisors (see below), whose sum is σ = 1984877024. Its totient is φ = 916097076.

The previous prime is 1374145601. The next prime is 1374145631. The reversal of 1374145623 is 3265414731.

1374145623 is a `hidden beast` number, since 13 + 7 + 4 + 14 + 5 + 623 = 666.

It is not a de Polignac number, because 1374145623 - 2⁶ = 1374145559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1374145823) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76341415 + ... + 76341432.

Almost surely, 2^1374145623 is an apocalyptic number.

1374145623 is a deficient number, since it is larger than the sum of its proper divisors (610731401).

1374145623 is a wasteful number, since it uses less digits than its factorization.

1374145623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152682853 (or 152682850 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 1374145623 is about 37069.4702282080. The cubic root of 1374145623 is about 1111.7596802993.

It can be divided in two parts, 137 and 4145623, that added together give a triangular number (4145760 = T₂₈₇₉).

The spelling of 1374145623 in words is "one billion, three hundred seventy-four million, one hundred forty-five thousand, six hundred twenty-three".