1031400554 has 4 divisors (see below), whose sum is σ = 1547100834. Its totient is φ = 515700276.

The previous prime is 1031400553. The next prime is 1031400583. The reversal of 1031400554 is 4550041301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 934830625 + 96569929 = 30575^2 + 9827^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1031400553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257850137 + ... + 257850140.

Almost surely, 2^1031400554 is an apocalyptic number.

1031400554 is a deficient number, since it is larger than the sum of its proper divisors (515700280).

1031400554 is an equidigital number, since it uses as much as digits as its factorization.

1031400554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515700279.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1031400554 is about 32115.4254837142. The cubic root of 1031400554 is about 1010.3591684076.

Adding to 1031400554 its reverse (4550041301), we get a palindrome (5581441855).

The spelling of 1031400554 in words is "one billion, thirty-one million, four hundred thousand, five hundred fifty-four".