1145211554 has 8 divisors (see below), whose sum is σ = 1718164560. Its totient is φ = 572490036.

The previous prime is 1145211539. The next prime is 1145211559. The reversal of 1145211554 is 4551125411.

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

It is not an unprimeable number, because it can be changed into a prime (1145211559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44924 + ... + 65639.

It is an arithmetic number, because the mean of its divisors is an integer number (214770570).

Almost surely, 2^1145211554 is an apocalyptic number.

1145211554 is a deficient number, since it is larger than the sum of its proper divisors (572953006).

1145211554 is a wasteful number, since it uses less digits than its factorization.

1145211554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115744.

The product of its digits is 4000, while the sum is 29.

The square root of 1145211554 is about 33840.9744836049. The cubic root of 1145211554 is about 1046.2333838662.

Adding to 1145211554 its reverse (4551125411), we get a palindrome (5696336965).

The spelling of 1145211554 in words is "one billion, one hundred forty-five million, two hundred eleven thousand, five hundred fifty-four".