1375211451 has 8 divisors (see below), whose sum is σ = 1840382464. Its totient is φ = 913424040.

The previous prime is 1375211419. The next prime is 1375211473. The reversal of 1375211451 is 1541125731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1375211451 - 2⁵ = 1375211419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1375211351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 844951 + ... + 846576.

It is an arithmetic number, because the mean of its divisors is an integer number (230047808).

Almost surely, 2^1375211451 is an apocalyptic number.

1375211451 is a deficient number, since it is larger than the sum of its proper divisors (465171013).

1375211451 is a wasteful number, since it uses less digits than its factorization.

1375211451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691801.

The product of its digits is 4200, while the sum is 30.

The square root of 1375211451 is about 37083.8435305727. The cubic root of 1375211451 is about 1112.0470439162.

The spelling of 1375211451 in words is "one billion, three hundred seventy-five million, two hundred eleven thousand, four hundred fifty-one".