1551125434 has 8 divisors (see below), whose sum is σ = 2327073120. Its totient is φ = 775434396.

The previous prime is 1551125431. The next prime is 1551125447. The reversal of 1551125434 is 4345211551.

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

It is a super-2 number, since 2×1551125434² = 4811980224003376712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1551125396 and 1551125405.

It is not an unprimeable number, because it can be changed into a prime (1551125431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48264 + ... + 73699.

It is an arithmetic number, because the mean of its divisors is an integer number (290884140).

Almost surely, 2^1551125434 is an apocalyptic number.

1551125434 is a deficient number, since it is larger than the sum of its proper divisors (775947686).

1551125434 is a wasteful number, since it uses less digits than its factorization.

1551125434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128324.

The product of its digits is 12000, while the sum is 31.

The square root of 1551125434 is about 39384.3298026004. The cubic root of 1551125434 is about 1157.5745581239.

Adding to 1551125434 its reverse (4345211551), we get a palindrome (5896336985).

The spelling of 1551125434 in words is "one billion, five hundred fifty-one million, one hundred twenty-five thousand, four hundred thirty-four".