1144407554 has 4 divisors (see below), whose sum is σ = 1716611334. Its totient is φ = 572203776.

The previous prime is 1144407533. The next prime is 1144407623. The reversal of 1144407554 is 4557044411.

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., 604914025 + 539493529 = 24595^2 + 23227^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286101887 + ... + 286101890.

Almost surely, 2^1144407554 is an apocalyptic number.

1144407554 is a deficient number, since it is larger than the sum of its proper divisors (572203780).

1144407554 is an equidigital number, since it uses as much as digits as its factorization.

1144407554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572203779.

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 1144407554 is about 33829.0933073885. The cubic root of 1144407554 is about 1045.9884892108.

The spelling of 1144407554 in words is "one billion, one hundred forty-four million, four hundred seven thousand, five hundred fifty-four".