1453142140 has 48 divisors (see below), whose sum is σ = 3082060800. Its totient is φ = 575479872.

The previous prime is 1453142137. The next prime is 1453142153. The reversal of 1453142140 is 412413541.

It is a super-2 number, since 2×1453142140² = 4223244158087559200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1998457 + ... + 1999183.

It is an arithmetic number, because the mean of its divisors is an integer number (64209600).

Almost surely, 2^1453142140 is an apocalyptic number.

1453142140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1453142140 is an abundant number, since it is smaller than the sum of its proper divisors (1628918660).

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

1453142140 is a wasteful number, since it uses less digits than its factorization.

1453142140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594 (or 1592 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1453142140 is about 38120.1015213758. The cubic root of 1453142140 is about 1132.6681773611.

Adding to 1453142140 its reverse (412413541), we get a palindrome (1865555681).

The spelling of 1453142140 in words is "one billion, four hundred fifty-three million, one hundred forty-two thousand, one hundred forty".