1047450121 has 4 divisors (see below), whose sum is σ = 1109064852. Its totient is φ = 985835392.

The previous prime is 1047450109. The next prime is 1047450133. The reversal of 1047450121 is 1210547401.

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

It is an interprime number because it is at equal distance from previous prime (1047450109) and next prime (1047450133).

It can be written as a sum of positive squares in 2 ways, for example, as 566963721 + 480486400 = 23811^2 + 21920^2 .

It is a cyclic number.

It is not a de Polignac number, because 1047450121 - 2¹³ = 1047441929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1047450161) 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, 30807340 + ... + 30807373.

It is an arithmetic number, because the mean of its divisors is an integer number (277266213).

Almost surely, 2^1047450121 is an apocalyptic number.

It is an amenable number.

1047450121 is a deficient number, since it is larger than the sum of its proper divisors (61614731).

1047450121 is an equidigital number, since it uses as much as digits as its factorization.

1047450121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61614730.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 1047450121 is about 32364.3340886229. The cubic root of 1047450121 is about 1015.5729318960.

Adding to 1047450121 its reverse (1210547401), we get a palindrome (2257997522).

The spelling of 1047450121 in words is "one billion, forty-seven million, four hundred fifty thousand, one hundred twenty-one".