1142400037 has 2 divisors, whose sum is σ = 1142400038. Its totient is φ = 1142400036.

The previous prime is 1142400031. The next prime is 1142400071. The reversal of 1142400037 is 7300042411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 901560676 + 240839361 = 30026^2 + 15519^2 .

It is an emirp because it is prime and its reverse (7300042411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1142400037 - 2²⁷ = 1008182309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1142399990 and 1142400017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142400031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571200018 + 571200019.

It is an arithmetic number, because the mean of its divisors is an integer number (571200019).

Almost surely, 2^1142400037 is an apocalyptic number.

It is an amenable number.

1142400037 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142400037 is an equidigital number, since it uses as much as digits as its factorization.

1142400037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 1142400037 is about 33799.4088261910. The cubic root of 1142400037 is about 1045.3765077219.

Adding to 1142400037 its reverse (7300042411), we get a palindrome (8442442448).

The spelling of 1142400037 in words is "one billion, one hundred forty-two million, four hundred thousand, thirty-seven".