1431387045 has 60 divisors (see below), whose sum is σ = 2820459180. Its totient is φ = 693982080.

The previous prime is 1431386977. The next prime is 1431387071. The reversal of 1431387045 is 5407831341.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 555167844 + 876219201 = 23562^2 + 29601^2 .

It is not a de Polignac number, because 1431387045 - 2⁷ = 1431386917 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 34401 + ... + 63609.

It is an arithmetic number, because the mean of its divisors is an integer number (47007653).

Almost surely, 2^1431387045 is an apocalyptic number.

1431387045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1431387045 is a deficient number, since it is larger than the sum of its proper divisors (1389072135).

1431387045 is a wasteful number, since it uses less digits than its factorization.

1431387045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29248 (or 29228 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 1431387045 is about 37833.6760704006. The cubic root of 1431387045 is about 1126.9873140067.

The spelling of 1431387045 in words is "one billion, four hundred thirty-one million, three hundred eighty-seven thousand, forty-five".